Multiple choice

Which of the following is a device that connects two computers by telephone line?

  1. Modem

  2. USB

  3. NIC

  4. Hub

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

 Modem is a device that translates the digital signals of computer into analog signals which can travel across conventional phone lines. It is the combination of modulation and demodulation. Modulation means converting signals digital to analog and Demodulation mean converting signals analog to digital.